THRIFT-613. Make generated objects implement the NSCoding protocol.
git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@832507 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/compiler/cpp/src/generate/t_cocoa_generator.cc b/compiler/cpp/src/generate/t_cocoa_generator.cc
index e71f6cc..9e24b52 100644
--- a/compiler/cpp/src/generate/t_cocoa_generator.cc
+++ b/compiler/cpp/src/generate/t_cocoa_generator.cc
@@ -79,6 +79,12 @@
void generate_cocoa_struct_implementation(std::ofstream& out, t_struct* tstruct, bool is_xception=false, bool is_result=false);
void generate_cocoa_struct_initializer_signature(std::ofstream& out,
t_struct* tstruct);
+ void generate_cocoa_struct_init_with_coder_method(ofstream &out,
+ t_struct* tstruct,
+ bool is_exception);
+ void generate_cocoa_struct_encode_with_coder_method(ofstream &out,
+ t_struct* tstruct,
+ bool is_exception);
void generate_cocoa_struct_field_accessor_declarations(std::ofstream& out,
t_struct* tstruct,
bool is_exception);
@@ -451,6 +457,7 @@
} else {
out << "NSObject ";
}
+ out << "<NSCoding> ";
scope_up(out);
@@ -549,6 +556,142 @@
/**
+ * Generate the initWithCoder method for this struct so it's compatible with
+ * the NSCoding protocol
+ */
+void t_cocoa_generator::generate_cocoa_struct_init_with_coder_method(ofstream &out,
+ t_struct* tstruct,
+ bool is_exception)
+{
+ indent(out) << "- (id) initWithCoder: (NSCoder *) decoder" << endl;
+ scope_up(out);
+ if (is_exception) {
+ // NSExceptions conform to NSCoding, so we can call super
+ out << indent() << "self = [super initWithCoder: decoder];" << endl;
+ } else {
+ out << indent() << "self = [super init];" << endl;
+ }
+
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ t_type* t = get_true_type((*m_iter)->get_type());
+ out << indent() << "if ([decoder containsValueForKey: @\""<< (*m_iter)->get_name() <<"\"])" << endl;
+ scope_up(out);
+ out << indent() << "__" << (*m_iter)->get_name() << " = ";
+ if (type_can_be_null(t))
+ {
+ out << "[[decoder decodeObjectForKey: @\"" << (*m_iter)->get_name() << "\"] retain];" << endl;
+ }
+ else if (t->is_enum())
+ {
+ out << "[decoder decodeIntForKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ }
+ else
+ {
+ t_base_type::t_base tbase = ((t_base_type *) t)->get_base();
+ switch (tbase)
+ {
+ case t_base_type::TYPE_BOOL:
+ out << "[decoder decodeBoolForKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ break;
+ case t_base_type::TYPE_BYTE:
+ out << "[decoder decodeIntForKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ break;
+ case t_base_type::TYPE_I16:
+ out << "[decoder decodeIntForKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ break;
+ case t_base_type::TYPE_I32:
+ out << "[decoder decodeInt32ForKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ break;
+ case t_base_type::TYPE_I64:
+ out << "[decoder decodeInt64ForKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ break;
+ case t_base_type::TYPE_DOUBLE:
+ out << "[decoder decodeDoubleForKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ break;
+ default:
+ throw "compiler error: don't know how to decode thrift type: " + t_base_type::t_base_name(tbase);
+ }
+ }
+ out << indent() << "__" << (*m_iter)->get_name() << "_isset = YES;" << endl;
+ scope_down(out);
+ }
+
+ out << indent() << "return self;" << endl;
+ scope_down(out);
+ out << endl;
+}
+
+
+/**
+ * Generate the encodeWithCoder method for this struct so it's compatible with
+ * the NSCoding protocol
+ */
+void t_cocoa_generator::generate_cocoa_struct_encode_with_coder_method(ofstream &out,
+ t_struct* tstruct,
+ bool is_exception)
+{
+ indent(out) << "- (void) encodeWithCoder: (NSCoder *) encoder" << endl;
+ scope_up(out);
+ if (is_exception) {
+ // NSExceptions conform to NSCoding, so we can call super
+ out << indent() << "[super encodeWithCoder: encoder];" << endl;
+ }
+
+ const vector<t_field*>& members = tstruct->get_members();
+ vector<t_field*>::const_iterator m_iter;
+
+ for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+ t_type* t = get_true_type((*m_iter)->get_type());
+ out << indent() << "if (__"<< (*m_iter)->get_name() <<"_isset)" << endl;
+ scope_up(out);
+ //out << indent() << "__" << (*m_iter)->get_name() << " = ";
+ if (type_can_be_null(t))
+ {
+ out << indent() << "[encoder encodeObject: __" << (*m_iter)->get_name() << " forKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ }
+ else if (t->is_enum())
+ {
+ out << indent() << "[encoder encodeInt: __" << (*m_iter)->get_name() << " forKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ }
+ else
+ {
+ t_base_type::t_base tbase = ((t_base_type *) t)->get_base();
+ switch (tbase)
+ {
+ case t_base_type::TYPE_BOOL:
+ out << indent() << "[encoder encodeBool: __" << (*m_iter)->get_name() << " forKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ break;
+ case t_base_type::TYPE_BYTE:
+ out << indent() << "[encoder encodeInt: __" << (*m_iter)->get_name() << " forKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ break;
+ case t_base_type::TYPE_I16:
+ out << indent() << "[encoder encodeInt: __" << (*m_iter)->get_name() << " forKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ break;
+ case t_base_type::TYPE_I32:
+ out << indent() << "[encoder encodeInt32: __" << (*m_iter)->get_name() << " forKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ break;
+ case t_base_type::TYPE_I64:
+ out << indent() << "[encoder encodeInt64: __" << (*m_iter)->get_name() << " forKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ break;
+ case t_base_type::TYPE_DOUBLE:
+ out << indent() << "[encoder encodeDouble: __" << (*m_iter)->get_name() << " forKey: @\"" << (*m_iter)->get_name() << "\"];" << endl;
+ break;
+ default:
+ throw "compiler error: don't know how to encode thrift type: " + t_base_type::t_base_name(tbase);
+ }
+ }
+ scope_down(out);
+ }
+
+ scope_down(out);
+ out << endl;
+}
+
+
+/**
* Generate struct implementation.
*
* @param tstruct The struct definition
@@ -609,6 +752,11 @@
scope_down(out);
out << endl;
}
+
+ // initWithCoder for NSCoding
+ generate_cocoa_struct_init_with_coder_method(out, tstruct, is_exception);
+ // encodeWithCoder for NSCoding
+ generate_cocoa_struct_encode_with_coder_method(out, tstruct, is_exception);
// dealloc
if (!members.empty()) {